Eters co



(No Model.)

J. W. BRAGGER.

FLUSHING VALVE.

No, 597,946. Patented Jan. 25, 1898.

Wax/Leases MW/ 1 NORFUS PETERS co. PHOTO-mum, \vnnmcnoN. u. c.

UNITED K STATES.

Prion.

PATENT JOHN RV. BRAGGER, OF WVATERTOWN, NEWV YORK, ASSIGNOR TO THE HITGHOOOK LAMP COMPANY, OF SAME PLACE.

FLUSHlNG-VALVE.

SPECIFICATION forming part of Letters Patent No. 597,946, dated January 25, 1898.

Application filed June 11, 1897.

To aZZ whom it may concern:

Be it known that I, J OHN W. BRAGGER, a citizen of the United States, residing at Vatertown, in the county of Jefferson and State of New York,have invented certain new and useful Improvements in Flushing-Valves; and I do declare the following to be a full, clear, and exact description of the invention, such as will en able others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to certain new and useful improvements in water-closet-flushing valves, and in carrying out the present invention it is my purpose to generally improve upon constructions of flushingwalves common in the art and also upon the valve upon which I have a pending application.

More specifically this invention consists in the provision of a piston provided with a suitable stem which is adapted to Work within a suitable shell or casing and a valve-regulated duct leading from one side of the piston to the other at the highest point of the shell, whereby the water contained within the easing or shell outside of the piston may be forced through the said duct as the flushin valve is opened, and in a reverse movement of the piston, as in the closing of the supplyvalve, the latter will be retarded slightly, owing to the partial vacuum, which is broken only by the small quantity of water that is allowed to enter the vacuum-space.

To these ends and to such others as the invention may pertain the same consists, further, in the novel construction, combination, and adaptation of the parts, as will be hereinafter more fully described, and then specifically defined in the appended claims.

The invention is clearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part of this specification, and in which drawings- Figure l is a plan view of my improved flushing-valve, showing the outside casing. Fig. 2 is a central vertical longitudinal sectional view through the device.

Reference now being had to the details of $eria1No. 640,358. (No model.)

the drawings by letter, A designates the shell or casing of the flushing-valve and is provided at one end with a screw-threaded cap A and with inlet-passage A and outlet-passage A and a valve-seat A which is integral with the shell. Mounted within the shell is a piston-stem 0, one end of whichis provided with a piston or plunger A, made up of two plates which have suitable packing between same and are held against a shoulder on the stem by a threaded nut D. This piston is designed to work in an enlarged end portion of the shell or casing, as illustrated in the drawings.

Communicating with the space in the easing on. opposite sides of the piston is a duet F and at the entrance to the said duct and vertically disposed is a valve E, which is designed to be seated against the seat F, which may be formed by a screwthreaded plug and fitted in the aperture provided therefor. In order to regulate the said valve and prevent it from fully closing, I provide a set-screw G, the lower end of which may be presented in the path of the valve, as shown. This screw is carried in the screw-threaded plug F and a suitable cap G'is fitted in the outer end of the aperture provided to receive the valve to prevent leakage and by removing which access may be had to the said valve and adj usting set-screw.

At the opposite end of the shell or casing is provided the stem receiving casting in which the stem is guided, and which casting B may be held to the shell A by a suitable union B. Between the ends of the said shell and casting is located the diaphragm D of ordinary construction common in the art, which is held to the stem by suitable washers D and nut D the said washers being forced against a shoulder on the stem. In order to allow sufficient play to the diaphragm the ends of the shell and casting are hollowed out, as shown. ithin the casting and carried on the stem 0 is a coiled spring E, one end of which bears against the inner end wall of the casing, while its other end bears against set-nuts E, mounted on the screwthreaded portion of the stem, by which the tension of the spring may be regulated when it is desired to balance the valve 0 which allows the water from the inlet-passageto pass through into the outlet-pipe A The operating-lever K, which is fulcru med on a pin carried in an aperture K in the casting, is held on a stud K on the side of the casting and has a vertical playlimited by the elongated slot or aperturein the'lever. By means of the set-screw L the throw of the lever may be regulated. A suitable nut M holds the lever on the stud, anda jam-nut may be mounted on the set-screw, as shown. At one end of the lever is bolted, at the end of the casting, an arm N,.the angle at which it is desired to have the same held being capable of being regulated. signed to bear against the end of the pistonstem as the lever is raised, as will be'understood. I

In operation when the lever israised the stem and piston-are forced back and the Warter, entering the shell through the inlet-passage, exerts pressure (due to the crank) upon the fiat face of the valve 0 and static pres sure upon the face of the piston A next the Valve. The latter pressure being great, it will hold the valve open until it. is nearly or quite balanced by pressure upontheopposite face of the same piston, due to waterpassing, slowly. through the duct F and by the valve F. The valve can therefore move to its seat,

only as fast as the enlarging space on the side of the piston opposite the valve can be filled:

ger isoperated.

top, and as the elasticity of the airis so great This arm is dethe valve doesnot operate successfully, but by placing the duct as hereinbefore described the difficulty is overcome.

Having thus described my invention, what I claim to be new, and desire to secure by Letters, Patent, is-

1. In" combination with' the shell, having the piston-stem and pistonmounted thereon,

the enlarged portion in which the latter works,

the valve-regulated duct and valve and seat therefor as described, the casting Bin which one end of the stem is held and guided, a

spring about, the stem within a hollow portion of the said casting, set-nuts for regulating the tension thereof, the diaphragm, the adjacent ends of the said shell and casting being conof the said slot and an arm pivoted at one end of the lever and which isdesigned to bear againstthe. endof the piston-stem as the leverisoperated, substantially as shown and described;

In testimony whereof Laffix my signature inpresence of two witnesses.

JOHN W. BRAGGER.

Witnesses:

OORA' L. SHERMAN, JNo. B; TAYLOR; 

